Results 21 to 30 of about 85,414 (206)

Modeling and analysis of nonlinear rotordynamics due to higher order deformations in bending [PDF]

open access: yes, 2011
A mathematical model incorporating the higher order deformations in bending is devel- oped and analyzed to investigate the nonlinear dynamics of rotors. The rotor system con- sidered for the present work consists of a flexible shaft and a rigid disk. The
Berlioz, Alain   +2 more
core   +3 more sources

MODELING OF THE MACHINE FOR THE BALANCING OF THE ROTOR IN THE ANSYS SOFTWARE COMPLEX

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2018
An imbalance appears during the manufacture, operation and maintenance of power equipment. The rotor imbalance arises due to the unbalanced masses of the rotor which leads to the emergence of variable loads on the supports and bending of the rotor.
I. R. Tazeyev   +3 more
doaj   +1 more source

Research on Unbalanced Vibration Suppression Method for Coupled Cantilever Dual-Rotor System

open access: yesMachines, 2022
The cantilever dual-rotor system is a typical structure of the blade output end of the open rotor engine and the coaxial output turboshaft engine. The excessive unbalanced vibration of a coupled cantilever dual-rotor system is one of the main factors ...
Jiaqiao Lu   +3 more
doaj   +1 more source

A Decoupling Algorithm-Based Technology for Predicting and Regulating the Unbalance of Aircraft Rotor Assembly Considering Manufacturing Errors

open access: yesMachines, 2023
Rotor unbalance is the most important factor affecting the dynamic performance of aircraft engines. The existing unbalance prediction and control methods are insufficient for multi-stage rotors.
Yingjie Zhao   +5 more
doaj   +1 more source

Dynamic Balance Method for Grading the Chain Drive Double Threshing Drum of a Combine Harvester

open access: yesApplied Sciences, 2020
Although the individual threshing drum of a combine harvester was balanced on a dynamic balancing machine before it is assembled, there were still unbalances after multiple drums were assembled with the chain drive. In this paper, the double drums with a
Zhong Tang   +4 more
doaj   +1 more source

Enhanced Electric Vehicle Integration in the UK Low Voltage Networks with Distributed Phase Shifting Control [PDF]

open access: yes, 2019
Electric vehicles (EV) have gained global attention due to increasing oil prices and rising concerns about transportation-related urban air pollution and climate change.
Denai, Mouloud, Vega-Fuentes, Eduardo
core   +3 more sources

Effects of Vibration Direction, Feature Selection, and the SVM Kernel on Unbalance Fault Classification

open access: yesMachines
In this study, the combined influence of vibration direction, feature selection strategy, and the support vector machine (SVM) kernel on the classification accuracy of unbalance faults was investigated.
Mine Ateş, Barış Erkuş
doaj   +1 more source

Design and application of squeeze film dampers for turbomachinery stabilization [PDF]

open access: yes, 1975
The steady-state transient response of the squeeze film damper bearing was investigated. Both the steady-state and transient equations for the hydrodynamic bearing forces are derived; the steady-state equations were used to determine the damper ...
Allaire, P. E.   +2 more
core   +2 more sources

Congestion Management Method of Low-Voltage Active Distribution Networks Based on Distribution Locational Marginal Price

open access: yesIEEE Access, 2019
Large-scale distributed energy resources, such as electric vehicles (EVs) asymmetric access to low-voltage distribution systems, may cause security problems, including line congestion, voltage violation, and three-phase unbalance.
Jinli Zhao   +5 more
doaj   +1 more source

Grasping and Control Issues in Adaptive End Effectors [PDF]

open access: yes, 2004
Research into robotic grasping and manipulation has led to the development of a large number of tendon based end effectors. Many are, however, developed as a research tool, which are limited in application to the laboratory environment.
Crowder, Richard, Dubey, Venketech
core   +1 more source

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